In principle I'd agree with you, but at times in practice, some processing has helped.
I have a Radiohead Bluray that improves its punchiness and timing when I use the "Rock" setting. And I've found with some movies that have a lazier softer soundtrack that using "Optimum" again gives it a bit more dynamism. Some movie soundtracks have punchy effects that are SO much louder than other dialogue-heavy scenes that to avoid constantly adjusting the volume, the Optimum setting gives a boost to the quieter bits. After all, most of us don't listen at Cinema Reference levels. I have neighbours after all (and I'd like them to continue to be my neighbours!).
For two-channel sources I hop between Pure Direct, Direct and Extended Stereo quite a bit. My preference varies according to the source material. To my knowledge Extended Stereo adds very little processing (in terms of trying to mimic a particular room or hall's acoustics), but simply invokes all available speakers. So back left mimics front left, same with the right hand side, and a smidgen of left and right appears in the centre. It works very well, providing I alter the balance towards the front speakers. (As my listening position is much closer to my rear speakers, so I need to alter the fader with 75% towards the front). It certainly doesn't sound "processed", which some of the other settings (like Drama, Action or Sports) can do. And with some music it adds a really lovely ambience, so its nice having the option.
I also use Extended Stereo if I'm entertaining. It gives a wider overall sound in the room, rather than one person being overwhelmed with music and others straining to hear.
So in answer to your question, yes I do use some of these settings successfully, but sparingly and usually as a response to the source material's own characteristics.